anspect -- calculate and display spectra from speech at selected times


anspect (-i item) (-w window) (-a anlabel|-t time|-T timefile) (-n) (-m) (-p) (-P) file


anspect is a program to display a cross-section spectrum of a speech signal of a given analysis window size at a give time in the signal. anspect can also plot a number of spectra from a file containing a list of times, normalise spectra and calculate the mean spectrum.

Options and their meanings are:

-I Identify program and exit.

-i item Select input item.

-w window Specify the analysis window size in seconds. Default: 0.020s.

-c Perform cepstral smoothing on the resulting spectrum.

-P Do not pre-emphasise the signal prior to analysis.

-a anlabel Specify an annotation label that specifies a time at which to calculate the spectrum.

-t time Specify the time at which to calculate the spectrum.

-T timefile Specify a file containing times (one per line) at which to calculate a number of spectra. If filename is given as '-', then the times are read from the standard input.

-n Normalise the spectrum by subtracting the mean dB value from each frequency.

-m Calculate the mean spectrum when more than one spectrum is calculated.

-p Send the resulting graph directly to the printer.

-f maxfreq Set maximum frequency for displayed graph.


SP.xx Any speech item.

AN.xx (Optional) Any annotation item.


1.0 - Mark Huckvale.


Fri Jul 09 14:54:34 2004